Viagra and Cialis are both popular treatments for erectile dysfunction (ED). Viagra is the brand name for the drug sildenafil, and Cialis is the brand name for tadalafil. Both of these drugs work by increasing blood flow to the penis, helping to produce an erection. The main difference between the two is their duration of action. Viagra typically takes around 30 minutes to take effect, whereas Cialis can take up to two hours. The effects of Viagra usually last for 4-6 hours, while those of Cialis can last for up to 36 hours. This means that Cialis is more suitable for spontaneous sexual activity, while Viagra is more suitable for planned sexual activity.
Another difference between the two is the amount of active ingredient in each pill. A single dose of Viagra contains 100mg of sildenafil, while a single dose of Cialis contains 20mg of tadalafil. This means that Cialis is more potent than Viagra, and may be more suitable for men with severe ED. However, both drugs are effective at treating ED, and the choice of which to take should be discussed with a doctor.
